Yosuharu Yokoyama

Follow

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Low viscosity, high abrasion resistance engine oil composition
- Patent number 7,399,736
- Issue date Jul 15, 2008
- Tonengeneral Sekiyu K.K.
- Miyoshi Marumo
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
Low viscosity, high abrasion resistance engine oil composition
- Publication number 20050221998
- Publication date Oct 6, 2005
- Miyoshi Marumo
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...